*SUPPORT*
IN: dax wif fep OUT: GREEN RED
IN: gazzer fep fep wif blicket OUT: BLUE RED RED PINK
IN: dax dax wif blicket OUT: GREEN GREEN PINK
IN: gazzer kiki OUT: BLUE BLUE
IN: blicket blicket kiki OUT: PINK PINK PINK
IN: fep OUT: RED
IN: blicket gazzer OUT: PINK BLUE
IN: dax wif dax OUT: GREEN GREEN
IN: blicket fep zup OUT: PINK RED RED RED RED
IN: dax kiki OUT: GREEN GREEN
IN: fep kiki OUT: RED RED
IN: blicket wif blicket OUT: PINK PINK
IN: dax fep fep OUT: GREEN RED RED
IN: dax zup OUT: GREEN GREEN GREEN GREEN

*QUERY*
IN: dax dax wif fep OUT: GREEN GREEN RED
IN: gazzer wif gazzer OUT: BLUE BLUE
IN: blicket kiki OUT: PINK PINK
IN: blicket wif gazzer OUT: PINK BLUE
IN: gazzer zup OUT: BLUE BLUE BLUE BLUE
IN: fep blicket gazzer wif fep OUT: RED PINK BLUE RED
IN: gazzer OUT: BLUE
IN: dax OUT: GREEN
IN: blicket zup OUT: PINK PINK PINK PINK
IN: fep blicket kiki OUT: RED PINK PINK

*GRAMMAR*
fep -> RED 
 gazzer -> BLUE 
 blicket -> PINK 
 dax -> GREEN 
 u1 wif u2 -> [u1] [u2] 
 u1 kiki -> [u1] [u1] 
 u1 zup -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 